Keep bad guys out. Let good guys in.
Automatically block spam, botnets, malware, phishing, and more from your WordPress sites. Try Today!Think Your Security Plugin is Working?
Go on, we dare you. Get our cyber threat intelligence-based threat blocker plugin and you’ll see just how much bad stuff your current cloud firewall or security plugin is letting through to your site. Learn more now.
The Musubu Security Difference
Always-On Blocking
Highly-Affordable
Great Support
No Plugin Conflicts
Single or Multi-Site
Weekly Activity Reports
No Config Headaches
Won't Block Good Traffic
Built by Cyber Experts
Stop Cybercrime Before it Hits Your WordPress Website.
Today, your website is your business.
Get our threat blocker plugin and automatically stop harmful visitors from hitting your site – and affecting your bottom line – with things like malware, ransomware, phishing, and botnets.
Our plugin is built on Musubu’s powerful cyber threat intelligence APIs. We collect, score, and type cyber threats by IP address to build you a “WordPress Application Firewall.”
Good traffic gets in, bad guys stay out.

How Can Malicious Traffic Hurt You?








How Does The Plugin Work?

We Score All Visitors
Our plugin uses our Musubu API to dynamically check each IP address that hits your site. Our algorithms and data analysis modules determine if each is a cyber threat, what kind of threat it is, and where it’s coming from.
We Block Bad Traffic
Based on the Threat Score, Threat Type and/or Country of Origin, our plugin blocks traffic that meets certain automatic or manual thresholds from reaching your site. We call it our “WordPress Application Firewall,” or WAF.


You Have Control
You can set our plugin to automatically block traffic that Musubu sees as malicious. That means IP addresses that score higher than 80 out of 100 on our Threat Score range. You can always unblock IPs that you want to allow into your site. Or, you can opt into manual mode and choose what criteria for which to deny access.
Your Site is Safer
Head off connections that lead to “business-killing” things like data breach, phishing, and malware infection before they get inside your walls, and you’ll avoid things like damaged reputation, lost revenue, theft, and costly litigation.

What Are Our Plugin Features?

Powerful Threat Scoring

Real-Time Blocking

Automatic or Manual Mode

Country Blocking (GDPR)
HINT: It’s great for GDPR protections too!

IP Drill-In Details

Simple to Use
How Do You Use The Plugin?
- Get our plugin, Base or Pro, here.
- Install into your WordPress instance.
- Apply the API key we send you via email.
- Set in Automatic or Manual mode.
- Enjoy your safer site!
Why Choose Musubu?
IP and network threat intelligence are all we do at Musubu. Our APIs, web applications and 3rd party plugins are built on decades of experience doing cybersecurity for governments, U.S. intelligence community, and commercial customers.
Our unique and powerful threat data scoring lets us build apps and plugins to protect just about anything you use on the internet.

Compare Plugins
You’ve got a business or project, and a website to show it off! Protect it against threats before they find your site with IP Threat Blocker, the leader in hostile IP address protection!
IP Threat Blocker | Ninja Firewall | WordFence | Shield Security | IP2Location Country Blocker | Lion Scripts | |
---|---|---|---|---|---|---|
Cost | Free/$20 | Free/$45 | Free/$99 | Free/$30 | Free/$50 | Free/$99 |
Choice of Automatic/Manual Blocking | Yes | No | No | No | No | No |
Brute Force Attacks | Yes | Yes | Yes | Yes | No | Yes |
Country Blocking | Yes | Only on premium | Yes | No | Yes | Yes |
IP Data Drilldown | Yes | No | No | No | No | No |
IP Threat Scoring | Yes | Yes | No | No | No | No |
Simple to Use? | Yes | No | No | No | No | No |
Plugin Pricing
On the fence on IP Threat Blocker? Enter MusubuMonth at checkout for a 1-month free trial (single site) and see what it can do!